Ash (Fraxinus pennsylvanica)

ash (Fraxinus pennsylvanica) (20853 bytes)    

Ash (Fraxinus pennsylvanica) A hardy native, the Ash is a cold,  drought and alkali tolerant medium to large tree. Ash grows to 30-40 feet in height. It is hardy to zone 1. Diecious, this tree has both male and female varieties. Since the onset of Dutch elm disease, Green Ash has been over-planted in urban and conservation settings as a replacement for the American Elm. 

ash buds (3727 bytes)

Buds on the male tree are large and prone to eriophyid mite damage.

ash foliage (3819 bytes)

Foliage is dark green, with leaves that are 10-12 inches long, and divided into 5-9 leaflets that are each 4 to 6 inches in length. Foliage can be damaged by the Ash leaf-curl aphid and the Brown-headed Ash sawfly.

ash foliage in fall (5777 bytes)

Fall Foliage is a bright gold.

ash seeds (1704 bytes) Seeds (on the female tree) are wind-borne and can be messy.
ash bark (5921 bytes)

Bark is ash-gray to brownish on older branches and furrowed into close diamond-shaped areas separated by narrow interlacing ridges.

Photos: Judy Sedbrook

Recommended Street Trees

Back to Trees & Shrubs to Plant in Drought

Back to Trees

Back to Home

 

 

Ask a Colorado Master Gardener | Calendar | Children | Container GardeningCSU Fact Sheets
Credits | Diseases | FAQ | Flowers | Fruits | Gardening | GlossaryHouseplants | Insects & Pests
Lawn & Grasses | Links | New to Colorado | PHC/IPM | Soil | Shrubs | Trees
Vegetables | Water Gardening | Weeds | What's New | Who We Are | Xeriscape

Search

line4.gif (1411 bytes)

Contact Us | Disclaimer | Equal Opportunity

CSU/Denver County  Extension Master Gardener 2010
888 E. Iliff Avenue,  Denver, CO 80210
(720) 913-5278

E-Mail: denvermg@colostate.edu  

Date last revised: 01/05/2010